What are the JPA @Entity association attributes?
1.Association validation
2.Association multiplicity
3.Association cascade behavior
4.Association direction
Posted Date:-2022-09-20 08:11:21
What is TRUE about the cascading and cascade mode attributes in Entity Beans?
1. Cascade mode attributes can be specified for the association annotaions (like @OneToMany) in an entity bean
2.The cascading direction is from the target entity to the source entity
3. Refresh cascade causes to refresh the target entities of a relationship when refresh is invoked on the source entity of the relationship
4.PERSIST, DELETE and REFRESH are cascading mode attributes
Posted Date:-2022-09-20 08:30:53
What's true about the following @Entity association between House and Window? @Entity public class Window { @Id private int winNo; @ManyToOne private House aHouse; } @Entity public class House { @Id private int houseNo; @OneToMany(mappedBy="aHouse") private List windows; }
1. It's OneToMany unidirectional association
2.It's OneToMany bidirectional association
3.The association owner is the House class
4.The association owner is the Window class
Posted Date:-2022-09-20 08:20:05
JPA implementation is provided by ---?
1.Hibernate
2.Toplink
3.Ibatis
4.All of them
Posted Date:-2022-09-20 08:13:14
Object/relational metadata can be specified directly in the entity class file by using annotations, or in a separate ________ descriptor file distributed with the application.
1.Scalable Vector Graphics
2.HTML
3.XML
4.XHTML
Posted Date:-2022-09-20 08:25:04
What is the JPA equivalent of hibernate.cfg.xml file?
1.configuration.xml
2.persistence.xml
3.jpa.configuration.xml
4.jpa.configuration.xml
Posted Date:-2022-09-20 08:34:05
What is the Life Cycle Of A Jpa Entity?
1.New / Transient
2.Managed / Persisted
3.Detached
4. All of the above
Posted Date:-2022-09-20 08:17:37
Which annotation is used to create Pk-Fk relation b/w two tables?
1.JoinColumn
2.ForeignKey
3.JoinedKey
4.None of these
Posted Date:-2022-09-20 08:22:57
Which attribute of @OneToMany is used to mark an entity as owned?
1.cascade
2.mappedBy
3.propertyRef
4.None of the above
Posted Date:-2022-09-20 08:32:03
______ has stated that ideas came from several frameworks, including Hibernate and JDO.
1.Sun Microsystems
2.Java (software platform)
3.Open JDK
4.Java (programming language)
Posted Date:-2022-09-20 08:15:51